Safe separation traction device

Abstract

The utility model provides a safe separation traction device, which is arranged between a power trolley and a track detector, the traction device comprises a connecting piece, a traction frame, a traction base and an elastic rotating piece, one of the power trolley and the track detector is connected with the connecting piece, the connecting piece is connected with the traction frame, and the traction frame is connected with the elastic rotating piece. One of the power trolley and the track detector is provided with a traction frame, the other one of the power trolley and the track detector is provided with the traction base, the traction base is provided with the elastic rotating piece, and the elastic rotating piece is matched with the traction frame so that the elastic rotating piece can be separated from the traction frame; the elastic rotating part comprises a traction swing rod and an elastic part arranged in the traction swing rod, the bottom of the elastic part is connected with the traction base, the top of the elastic part is connected with the inner top of the traction swing rod, and when the traction force of the traction frame is larger than a threshold value, the elastic rotating part is bent and deformed, and the traction force of the traction frame is larger than the threshold value. And the safety of rapid rail inspection operation is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of track detection, and particularly relates to a safety detachment traction device. Background Art

[0002] To ensure that the railway track always maintains the correct state required for safe transportation, track inspection instruments are widely used in engineering to inspect the static geometric dimension state of the track. The operation of traditional track inspection instruments is in a hand-pushing mode, and the operation speed is within 6 km / h. With the rapid growth of the total domestic track construction mileage and the development and progress of technology, a fast track inspection operation method of pushing (pulling) the track inspection instrument with a power traction vehicle has been widely applied.

[0003] The invention patent with the publication number of CN113511231B discloses a device for a power car to tow a track inspection instrument. However, when the device is fixed on the power car through a mounting seat and floats and tows the track inspection instrument to operate on the track, it cannot automatically detach the vehicle from the track inspection instrument. When encountering obstacles on the track line, once the operator fails to notice or reacts untimely, it may cause damage to the equipment and the line, and even cause personal injury. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a safety detachment traction device for solving the problems in the above background art.

[0005] The utility model provides the following technical solution: a safety detachment traction device is arranged between a power car and a track inspection instrument. The traction device includes a connecting piece, a traction frame, a traction base and an elastic rotating part. One of the power car and the track inspection instrument is connected with the connecting piece, the connecting piece is connected with the traction frame, the other of the power car and the track inspection instrument is provided with the traction base, and the elastic rotating part is arranged on the traction base. The elastic rotating part is adapted to the traction frame so that the elastic rotating part and the traction frame can be detached.

[0006] The elastic rotating part includes a traction swing rod and an elastic part arranged in the traction swing rod. The bottom of the elastic part is connected with the traction base, and the top of the elastic part is connected with the inner top of the traction swing rod. When the traction force of the traction frame is greater than a threshold value, the elastic rotating part is bent and deformed.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: when the track inspection instrument encounters an obstacle on the track line (for example, when the track inspection instrument gets stuck and cannot move forward), at this time, the power trolley continues to move forward, so as to generate a pulling force that moves away from each other between the power trolley and the track inspection instrument, that is, a pulling force that moves away from each other between the traction frame and the traction swing rod. When the traction force provided by the traction frame exceeds the limit, that is, when the pulling force that moves away from each other between the traction frame and the traction swing rod exceeds the limit, the elastic part begins to bend and deform, and at the same time, the traction swing rod also bends and deforms. When the elastic part drives the traction roller of the traction swing rod to bend below the bottom surface of the traction frame, the traction roller of the traction swing rod is separated from the traction frame, realizing the automatic disconnection of the traction device between the track inspection instrument and the power trolley. Thus, when the track inspection instrument is located behind the power trolley in the forward direction, the device automatically disconnects the mechanical connection between the track inspection instrument and the power trolley after the traction force exceeds the limit, effectively improving the safety of rapid track inspection operations.

[0008] Further, the connecting member includes a connecting base installed on one of the power trolley and the track inspection instrument, a connecting rod connected to the connecting base through a first quick-release pin, and the connecting rod is connected to the traction frame through a second quick-release pin.

[0009] Further, a first slot is opened at one end of the connecting base close to the connecting rod, a first insertion part extends at one end of the connecting rod close to the first slot, a second slot is opened at the other end of the connecting rod away from the first insertion part, and a second insertion part extends at one end of the traction frame close to the second slot. The first insertion part is adapted to the first slot, and the second slot is adapted to the second insertion part.

[0010] Further, the elastic rotary member further includes a traction roller connected to the outside of the traction swing rod through a rotating part, and an upper cover covering the top of the traction swing rod. The traction roller contacts the inner wall of the traction frame.

[0011] Further, a hanging pin is arranged at the inner bottom of the traction base, the bottom of the elastic part is hung on the hanging pin, and the top of the elastic part is hung on the upper cover.

[0012] Further, the rotating part is one of a copper sleeve, a nylon sleeve or a bearing.

[0013] Further, a receiving groove is opened at the top of the traction base, a placing part extends at the bottom of the traction swing rod, and the receiving groove is adapted to the placing part, so that the traction swing rod is supported on the traction base.

[0014] Further, the elastic part is one of a tension spring, a compression spring or an elastic rod. Description of the Drawings

[0015] Figure 1 It shows a three-dimensional structural schematic diagram of the safety detachment traction device in the embodiment of the present utility model;

[0016] Figure 2 It shows a three-dimensional structural schematic diagram of the safety detachment traction device in the detached state in the embodiment of the present utility model;

[0017] Figure 3 It shows a cross-sectional view of the elastic rotary member in the embodiment of the present utility model;

[0018] Figure 4 It shows an exploded view of the connecting member in the embodiment of the present utility model;

[0019] Figure 5 It shows a structural schematic diagram of the power trolley and the track inspection instrument in the embodiment of the present utility model;

[0020] Figure 6 It shows in the embodiment of the present utility model Figure 3 An enlarged structural schematic diagram of part A.

[0021] Main element symbol description: 100, traction device; 200, power trolley; 300, track inspection instrument; 10, connecting member; 11, connecting base; 12, first quick-release pin; 13, connecting rod; 14, second quick-release pin; 15, first slot; 16, first insertion part; 17, second slot; 18, second insertion part; 20, traction frame; 30, traction base; 40, elastic rotary member; 41, traction swing rod; 42, elastic part; 43, rotating part; 44, traction roller; 45, upper cover; 46, hanging pin; 47, accommodating groove; 48, placing part.

[0022] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. Specific Embodiments

[0023] It is shown that for the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0024] It should be noted that when an element is said to be "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Please refer to Figures 1 to 3 As shown, a safety detachment traction device in an embodiment of this utility model, the traction device 100 includes a connecting member 10, a traction frame 20, a traction base 30, and an elastic rotary member 40.

[0027] Specifically, this traction device 100 is mainly applied between a power trolley 200 and a track inspection instrument 300. Among them, the traction device 100 is arranged between the power trolley 200 and the track inspection instrument 300. One of the power trolley 200 and the track inspection instrument 300 is connected with the connecting member 10, the connecting member 10 is connected with the traction frame 20, the other of the power trolley 200 and the track inspection instrument 300 is installed with the traction base 30, and the elastic rotary member 40 is arranged on the traction base 30, and the elastic rotary member 40 is adapted to the traction frame 20 so that the elastic rotary member 40 and the traction frame 20 can be detached;

[0028] In this embodiment, the installation positions of the connecting member 10 and the traction base 30 can be interchanged, and the same traction effect can be achieved. That is, when the traction base 30 is connected to the power trolley 200, the connecting member 10 is fixed on the track inspection instrument 300; when the traction base 30 is connected to the track inspection instrument 300, the connecting member 10 is fixed on the power trolley 200. During specific implementation, taking the traction base 30 being connected to the track inspection instrument 300 and the connecting member 10 being fixed on the power trolley 200 as an example for detailed description.

[0029] Specifically, the elastic rotary member 40 includes a traction swing rod 41 and an elastic part 42 arranged inside the traction swing rod 41. The bottom of the elastic part 42 is connected to the traction base 30, and the top of the elastic part 42 is connected to the inner top of the traction swing rod 41. When the traction force of the traction frame 20 is greater than the threshold value, the elastic rotary member 40 is bent and deformed.

[0030] During specific implementation, during normal operation, the traction device 100 is used for the power cart 200 to pull the track inspection instrument 300 (the track inspection instrument 300 is located behind the power cart 200 in the moving direction) to perform rapid inspection on the track surface. At this time, the traction roller 44 of the traction swing rod 41 is sleeved in the traction frame 20 and can move relatively left and right and forward and backward. The movement force of the power cart 200 is transmitted to the track inspection instrument 300 through the inner wall of the traction frame 20, that is, the power cart 200 drives the track inspection instrument 300 to move forward / backward. The lateral rolling friction coefficient of the traction roller 44 is very small, and the track inspection instrument 300 is only subjected to a very small lateral component force, which does not affect the measurement attitude of the track inspection instrument 300 during operation;

[0031] When the track inspection instrument 300 encounters an obstacle on the track line (for example, when the track inspection instrument 300 is stuck and cannot move forward), at this time, the power cart 200 continues to move forward, so that a pulling force away from each other is generated between the power cart 200 and the track inspection instrument 300, that is, a pulling force away from each other is generated between the traction frame 20 and the traction swing rod 41. When the traction force provided by the traction frame 20 exceeds the limit, that is, when the pulling force away from each other between the traction frame 20 and the traction swing rod 41 exceeds the limit, the elastic part 42 begins to bend and deform, and at the same time, the traction swing rod 41 also bends and deform. When the elastic part 42 drives the traction roller 44 of the traction swing rod 41 to bend below the bottom surface of the traction frame 20, the traction roller 44 of the traction swing rod 41 is disengaged from the traction frame 20, realizing the automatic disconnection of the traction device 100 between the track inspection instrument 300 and the power cart 200, thereby improving the operation safety. When the track inspection instrument 300 is located behind the power cart 200 in the forward direction, the device automatically disconnects the mechanical connection between the track inspection instrument 300 and the power cart 200 after the traction force exceeds the limit, effectively improving the safety of rapid track inspection operations.

[0032] Please refer to Figures 4 to 6 As shown, further, in order to facilitate the disassembly of the connecting member 10 and the traction frame 20, the connecting member 10 includes a connecting base 11 installed on one of the power cart 200 and the track inspection instrument 300, a connecting rod 13 connected to the connecting base 11 through a first quick-release pin 12, and the connecting rod 13 is connected to the traction frame 20 through a second quick-release pin 14.

[0033] Furthermore, a first slot 15 is opened at one end of the connecting base 11 close to the connecting rod 13, a first insertion part 16 extends from one end of the connecting rod 13 close to the first slot 15, a second slot 17 is opened at the end of the connecting rod 13 away from the first insertion part 16, a second insertion part 18 extends from one end of the traction frame 20 close to the second slot 17, the first insertion part 16 is adapted to the first slot 15, and the second slot 17 is adapted to the second insertion part 18.

[0034] Specifically, the elastic rotating member 40 further includes a traction roller 44 connected to the outside of the traction swing rod 41 through a rotating portion 43, and an upper cover 45 covering the top of the traction swing rod 41. The traction roller 44 contacts the inner wall of the traction frame 20.

[0035] More specifically, in order to detach the elastic portion 42, a hanging pin 46 is provided at the inner bottom of the traction base 30. The bottom of the elastic portion 42 is hooked to the hanging pin 46, and the top of the elastic portion 42 is hooked to the upper cover 45.

[0036] Optionally, the rotating portion 43 is one of a copper sleeve, a nylon sleeve or a bearing, or the rotating portion 43 may not be required, that is, the traction roller 44 is directly installed. The elastic portion 42 is one of a tension spring, a compression spring or an elastic rod. The traction roller 44 can be made of an elastic material or a rigid material.

[0037] Furthermore, in order to enable the traction swing rod 41 to be stably supported on the traction base 30, a receiving groove 47 is formed at the top of the traction base 30, and a placement portion 48 extends from the bottom of the traction swing rod 41. The receiving groove 47 is adapted to the placement portion 48 so that the traction swing rod 41 is supported on the traction base 30. In this embodiment, when the traction swing rod 41 is supported on the traction base 30, the elastic portion 42 (tension spring) is slightly stretched later in the stroke to form a pre-tightening force.

[0038] In this embodiment, the traction base 30 is fixed to the frame of the track inspection instrument 300 by bolts. Hooks are respectively provided at both ends of the elastic portion 42. When the traction force exceeds the limit, the elastic portion 42 can bend and swing away, and automatically reset after detachment. The over-limit traction force can be adjusted by designing different springs (elastic portion 42). When the traction force exceeds the limit, the traction device 100 can be automatically disconnected to realize the detachment of the track inspection instrument 300 from the power car 200.

[0039] When a line problem occurs (for example, the track inspection instrument 300 gets stuck and cannot move forward), if the power car 200 continues to move forward and pulls the track inspection instrument 300, it will damage the track inspection instrument 300 and even cause injury to personnel. The effect of over-limit detachment is that the car can continue to move forward (there is a delay in the personnel operating the brake response), and the detachment of the track inspection instrument 300 from the car ensures the safety of the equipment and personnel. Moreover, under the self-resetting action of the spring, the car and the track inspection instrument 300 are reconnected, and after troubleshooting, it can continue to work and be used.

[0040] The rotating member can be a copper sleeve or a bearing, enabling the traction roller 44 to rotate freely, reducing the friction force, and reducing the interference of the movement of the power car 200 on the measurement attitude of the track inspection instrument 300.

[0041] The traction roller 44 is made of an elastic material and is used for vibration damping to reduce the interference of the movement of the power trolley 200 on the measuring attitude of the track inspection instrument 300.

[0042] The traction frame 20 is used to enclose the traction roller 44 and provide the traction force derived from the power trolley 200.

[0043] The fixed seat is fixed to the frame of the power trolley 200 by bolts.

[0044] The quick plug pin is used for quickly loading and unloading the connecting member 10.

[0045] In summary, for the safety detachment traction device in the above embodiments of the present utility model, when the track inspection instrument 300 encounters an obstacle on the track line (for example, when the track inspection instrument 300 is stuck and cannot move forward), at this time, the power trolley 200 continues to move forward, so that a pulling force away from each other is generated between the power trolley 200 and the track inspection instrument 300, that is, a pulling force away from each other is generated between the traction frame 20 and the traction swing rod 41. When the traction force provided by the traction frame 20 exceeds the limit, that is, when the pulling force away from each other between the traction frame 20 and the traction swing rod 41 exceeds the limit, the elastic part 42 begins to bend and deform, and at the same time, the traction swing rod 41 also bends and deforms. When the elastic part 42 drives the traction roller 44 of the traction swing rod 41 to bend below the bottom surface of the traction frame 20, the traction roller 44 of the traction swing rod 41 is separated from the traction frame 20, realizing the automatic disconnection of the traction device 100 between the track inspection instrument 300 and the power trolley 200, thereby improving the operation safety. Thus, when the track inspection instrument 300 is located behind the power trolley 200 in the forward direction, the device automatically disconnects the mechanical connection between the track inspection instrument 300 and the power trolley 200 after the traction force exceeds the limit, effectively improving the safety of the rapid track inspection operation.

[0046] Through the traction device 100, the one-way overlimit automatic detachment during the rapid track inspection operation can be realized, improving the operation safety; through the design of the traction device, the error of the traction force critical value is effectively controlled, improving the operation safety; through the traction device, the original traction device is optimized in structure to add an automatic detachment function, without the need to additionally increase the device and installation space, and can be replaced under the same installation size, and the replacement operation is simple and fast.

[0047] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0048] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A safety detachment traction device is provided between the power trolley and the track inspection instrument, characterized in that, The traction device includes a connecting member, a traction frame, a traction base, and an elastic rotary member. One of the power trolley and the track inspection instrument is connected with the connecting member, the connecting member is connected with the traction frame, the other of the power trolley and the track inspection instrument is equipped with the traction base, and the elastic rotary member is arranged on the traction base. The elastic rotary member is adapted to the traction frame so that the elastic rotary member and the traction frame can be disengaged; The elastic rotary member includes a traction swing rod and an elastic part arranged in the traction swing rod. The bottom of the elastic part is connected with the traction base, and the top of the elastic part is connected with the inner top of the traction swing rod. When the traction force of the traction frame is greater than the threshold value, the elastic rotary member is bent and deformed.

2. The safety release traction device according to claim 1, characterized in that, The connecting member includes a connecting base installed on one of the power trolley and the track inspection instrument, and a connecting rod connected to the connecting base through a first quick-release pin. The connecting rod is connected with the traction frame through a second quick-release pin.

3. The safety disengagement traction device according to claim 2, wherein, One end of the connecting base close to the connecting rod is provided with a first slot, one end of the connecting rod close to the first slot extends with a first insertion part, the other end of the connecting rod far from the first insertion part is provided with a second slot, and one end of the traction frame close to the second slot extends with a second insertion part. The first insertion part is adapted to the first slot, and the second slot is adapted to the second insertion part.

4. The safety detachment traction device according to claim 1, characterized in that, The elastic rotary member further includes a traction roller connected to the outside of the traction swing rod through a rotating part, and an upper cover covering the top of the traction swing rod. The traction roller contacts the inner wall of the traction frame.

5. The safety detachment traction device according to claim 4, characterized in that, A hanging pin is arranged at the inner bottom of the traction base. The bottom of the elastic part is hung on the hanging pin, and the top of the elastic part is hung on the upper cover.

6. The safety disengagement traction device according to claim 4, wherein The rotating part is one of a copper sleeve, a nylon sleeve or a bearing.

7. The safety release traction device according to claim 1, wherein A receiving groove is formed at the top of the traction base, and a placing part extends from the bottom of the traction swing rod. The receiving groove is adapted to the placing part so that the traction swing rod is supported on the traction base.

8. The safety disengagement traction device according to claim 1, wherein The elastic part is one of a tension spring, a compression spring or an elastic rod.

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